>> NEW BOOK <<

The Ornithological Technical Committee (OTC) of the Pennsylvania Biological Survey seeks your help in determining the distribution and abundance of nesting Northern Goshawks in Pennsylvania. Click HERE for details.

PABS Procedural Manual

The Pennsylvania Biological Survey is in the process of compiling the PABS Procedural Manual, consisting of a brief background of biodiversity conservation in Pennsylvania (Chapter 1), a concise statement of the methods PABS uses for status determination (Chapter 2), the legal framework for biodiversity conservation in the state (Chapter 3), and a summary of the methods used by the state agencies for regulatory listing (Chapter 4).